Deadlock in mplayerplug-in 3.50, when 2 embeds want to swap their "src" content.

<[email protected]> Tue, 27 May 2008 12:29:26 +0200

Newsgroups	gmane.comp.mozilla.mplayerplug-in
Message-ID	<[email protected]>

Hi!

I've got serious problem, when I am trying to change contents of 2 embeds
by switching src or using Open(filename),SetFileName()) (in parallel of 2
different movies).
In the attachments there is "test.html" which contain reproducable code..
(it doesn't include sample1.avi and sample2.avi, please apply your own
sample movies, it doesn't matter)

I was trying to fix it when my suspicious was pointed to one pthread_join
occurence, but currently I have no idea where the bug is located. :(

Nevertheless, the result is that whole Mozilla UI is just freeze.. (some
plugin threads are working, mplayer is responding.. but Mozilla and it's
javascript engine simply not).
It is 100% reproducable, but sometimes it needs 2-3 itterations..
(sometimes it is working for even 1-2 minutes, sometimes only 10 seconds is
enough)

I was using Debian with Gnome, with newest Mplayer, with newest
Mplayer-Plugin, with newest Firefox... but tested on different platforms,
with different compilations flags.


Please help.
Zbigniew

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test.html (text/html, 1 KB)

<html>
<head>
    <script type="text/javascript">
    var mySwitch=true;
    var embed;
    var src1 = "sample1.avi";
    var src2 = "sample2.avi";
    function run()
    {
	alert("juz");
        tmp_div = document.getElementById("test1");
        embed = tmp_div.getElementsByTagName("embed");
        embed[0].src = ((mySwitch) ? src2 : src1);
        tmp_div = document.getElementById("test2");
        embed = tmp_div.getElementsByTagName("embed");
        embed[0].src = ((mySwitch=!mySwitch) ? src2 : src1);
    }
    </script>
</head>
<body onLoad='setInterval("run()",5000);'>
    <div id="test1" style="position:absolute; left:0px; top:0px;">
	<embed type="video/mpeg" src="sample1.avi" height="300" width="400" autostart="true" loop="false" showcontrols="false"></embed>
    </div>
    <div id="test2" style="position:absolute; left:400px; top:0px;">
	<embed type="video/mpeg" src="sample2.avi" height="300" width="400" autostart="true" loop="false" showcontrols="false"></embed>
    </div>
</body>
</html>